Which of the following records of QC tests must be maintained?

• A. X-ray equipment performance evaluation, including acceptance testing and radiation safety surveys
• B. Verification that x-ray equipment is in safe operating order
• C. Subsequent QC test results
• D. All of the above

Answer: (D)

Maintaining QC records requires a complete documentation trail of how the X-ray system is tested and kept safe. Baseline performance is set with acceptance testing and radiation safety surveys, so you know how the equipment should perform and what the shielding and exposure levels should be. Verifying that the equipment is in safe operating order ensures the system is functioning correctly on a day-to-day basis and remains safe to use. Ongoing QC test results track performance over time, catching drift or faults before they affect image quality or patient safety. Together, these records cover initial qualification, ongoing safety, and continuous performance, which is why keeping all of them is necessary.